I was looking through some of the other forums looking for answers (still
looking) and stubbed on this:
As part of its Net services strategy to provide the infrastructure that
secures and powers all types of networks as one Net, Novell has struck a
deal with Yahoo! to integrate NDS eDirectory with Corporate Yahoo!

In the new lead story, titled "Novell Strikes Deal with Yahoo!" learn how
this agreement will integrate support for Novell's eBusiness
infrastructure technology with Corporate Yahoo!, a customized enterprise
information portal based on the successful My Yahoo! interface, and will
give customers a secure infrastructure offering Web personalization and
cross-platform support.

The complete story is available only at

Course the story is gone but this cat is curious. Is Yahoo using NDS?